[Form 4/A] CARPENTER TECHNOLOGY CORP Amended Insider Trading Activity

Rhea-AI Filing Summary

Carpenter Technology Corp (CRS) Form 4/A reports director Howard H. Yu received equity awards on 10/07/2025. He was granted 557 director stock units that convert 1-for-1 into common stock and are payable upon the later of separation of service or a specified date/event. He also received a director stock option covering 304 shares with an exercise price of $256.27, exercisable beginning 10/07/2026 and expiring 10/07/2035. The Form shows 1,392.2 shares beneficially owned following the transactions (including previously unreported dividend equivalents). The filing was signed via POA on 10/09/2025.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Yu Howard H

(Last) (First) (Middle)

C/O CARPENTER TECHNOLOGY CORPORATION

1735 MARKET STREET, 15TH FL

(Street)

PHILADELPHIA PA 19103

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CARPENTER TECHNOLOGY CORP [ CRS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/07/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)
10/09/2025

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Director Stock Units	(1)	10/07/2025		A		557		(2)	(2)	Common Stock	557	(3)	1,392.2(4)	D
Director Stock Option (Right to Buy)	$256.27	10/07/2025		A		304		10/07/2026	10/07/2035	Common Stock	304	(5)	304	D

Explanation of Responses:

1. Converts to common stock on a 1-for-1 basis

2. Payable upon the later of separation of service or a specified date or event.

3. The reporting person was granted restricted stock units under the Carpenter Technology Corporation Stock-Based Compensation Plan for Non-Employee Directors.

4. Includes dividend equivalents not previously reported.

5. The reporting person was granted an option to purchase stock under the Carpenter Technology Corporation Stock Based Compensation Plan for Non-Employee Directors.

	James D. Dee/POA	10/09/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What equity did Carpenter Technology director Howard H. Yu receive according to the Form 4/A?

The Form 4/A shows 557 director stock units and a 304-share stock option with an exercise price of $256.27 granted on 10/07/2025.

When do the awarded options become exercisable and when do they expire?

The option is exercisable beginning 10/07/2026 and expires on 10/07/2035.

How are the director stock units settled?

The director stock units convert on a 1-for-1 basis into common stock and are payable upon the later of separation of service or a specified date/event.

How many shares does Howard H. Yu beneficially own after the reported transactions?

The filing reports 1,392.2 shares beneficially owned following the reported transactions, which the form notes includes dividend equivalents not previously reported.

Under which plan were the awards granted?

The restricted stock units and the option were granted under the Carpenter Technology Corporation Stock-Based Compensation Plan for Non-Employee Directors.